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Goodwill and Intangible Assets
6 Months Ended
Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets
Goodwill and Intangible Assets
Goodwill represents the excess of the purchase price of all acquisitions over the estimated fair value of the net assets acquired. The Company evaluates goodwill and intangible assets for impairment at least annually or more frequently whenever events or changes in circumstances indicate that the asset may be impaired, or in the case of goodwill, the fair value of the reporting unit is below its carrying amount. The analysis of potential impairment of goodwill requires the Company to compare the estimated fair value at each of its reporting units to its carrying amount, including goodwill. If the carrying amount of the reporting unit exceeds the estimated fair value of the reporting unit, a non-cash goodwill impairment loss is recognized as an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit.
For purposes of the impairment analysis, the fair value of the Company’s reporting units is estimated based upon an average of the market approach and the income approach, both of which incorporate numerous assumptions and estimates such as company forecasts, discount rates, and growth rates, among others. The determination of the fair value of the reporting units and the allocation of that value to individual assets and liabilities within those reporting units requires the Company to make significant estimates and assumptions. These estimates and assumptions primarily include, but are not limited to, the selection of appropriate peer group companies, control premiums appropriate for acquisitions in the industries in which the Company competes, the discount rate, terminal growth rates, and forecasts of revenue, operating income, and capital expenditures. The allocation requires several analyses to determine fair value of assets and liabilities including, among others, customer relationships and property and equipment. Although the Company believes its estimates of fair value are reasonable, actual financial results could differ from those estimates due to the inherent uncertainty involved in making such estimates. Changes in assumptions concerning future financial results or other underlying assumptions could have a significant impact on either the fair value of the reporting units, the amount of the goodwill impairment charge, or both. Future declines in the overall market value of the Company's stock may also result in a conclusion that the fair value of one or more reporting units has declined below its carrying value.
The Company has four reporting units for its three segments: one reporting unit for its TES segment; one reporting unit for its LTL segment; and two reporting units for its Ascent segment, which are the Domestic and International Logistics reporting unit and the Warehousing & Consolidation reporting unit. In connection with the change in segments as indicated in Note 1, the Company reallocated $5.8 million of goodwill between the TES and Ascent segments.
The Company conducts its goodwill impairment analysis for each of its four reporting units as of July 1 of each year. However, in connection with the change in segments, the Company conducted an impairment analysis as of January 1, 2018 and determined there was no impairment.
There were no changes to total goodwill during the first half of 2018. The following is a breakdown of the Company's goodwill as of June 30, 2018 and December 31, 2017 by segment (in thousands):
 
TES
 
LTL
 
Ascent
 
Total
Goodwill
$
92,926

 
$

 
$
171,900

 
$
264,826


There were no changes to the accumulated goodwill impairment during the first half of 2018. In connection with the change in segments as indicated in Note 1, the Company reallocated $25.1 million of accumulated goodwill impairment between the TES and Ascent segments. The following is a breakdown of the Company's accumulated goodwill impairment losses as of June 30, 2018 by segment (in thousands):
 
TES
 
LTL
 
Ascent
 
Total
Accumulated goodwill impairment charges
$
132,408

 
$
197,312

 
$
46,763

 
$
376,483


Intangible assets consist primarily of customer relationships acquired from business acquisitions. In connection with the change in segments as indicated in Note 1, the Company reallocated net intangible assets of $0.3 million between the TES and
Ascent segments.
Intangible assets as of June 30, 2018 and December 31, 2017 were as follows (in thousands):
 
June 30, 2018
 
December 31, 2017
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net Carrying
Value
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net Carrying
Value
TES
$
55,008

 
$
(20,735
)
 
$
34,273

 
$
55,008

 
$
(18,470
)
 
$
36,538

LTL
2,498

 
(1,839
)
 
659

 
2,498

 
(1,748
)
 
750

Ascent
27,152

 
(16,022
)
 
11,130

 
27,152

 
(14,792
)
 
12,360

Total
$
84,658

 
$
(38,596
)
 
$
46,062

 
$
84,658

 
$
(35,010
)
 
$
49,648


The customer relationships intangible assets are amortized over their estimated useful lives, ranging from five to 12 years. Amortization expense was $1.8 million and $2.0 million for the three months ended June 30, 2018 and 2017, respectively. Amortization expense was $3.6 million and $4.1 million for the six months ended June 30, 2018 and 2017, respectively. Estimated amortization expense for each of the next five years based on intangible assets as of June 30, 2018 is as follows (in thousands):
Remainder 2018
$
3,537

2019
6,819

2020
6,447

2021
6,265

2022
5,826

Thereafter
17,168

Total
$
46,062